With my wife, and a couple of friends on a suspect weather day last year. Great track, hardly saw anyone.

The scree slope at the top is a b*gger but no real problems.
Came down the ridge which runs more or less north - south, the cloud came in, visibility was poor, the rocks were slippy, it rained (poured), we walked across a marsh and finished soaked back at the car park. I loved it, my wife described it as "the worst fun ever", which has now become a standard phrase whenever she is not enjoying herself.

Would recommend this route over any oher snowdon route, though I haven't done Crib Goch. I suspect that would also be the worst fun ever for my wife.

Although I thought it was my first time on the Watkin Path, my memory was jogged when I saw the big slab and the Gladstone boulder. Talking with Ken today he assured me that we'd done it years ago. It must be 'old timers'.
Yesterday it was with Colin and we managed the 6 hour trip even with a stay at the top looking at the train and the hordes of tourists outside the new Cafe'. On the return leg we took the south ridge to complete a mini horseshoe and dropped down to the old tramway track before linking to the Watkin path below the old workings.

Good man, even taking your gf in bad weather that's commitment. . . to the mountains! Took my gf up a munro in fabulous weather, got to the top proposed, and all she goes on about that trip is all the pain she went through on the way down. She's never been up another mountain since!